Pthbbbbbbbbbbbt!

I think you’re really horrible;
I’m flipping you the bird.
I’m showing you this fingernail
To spare a naughty word.

I think you smell of dental floss;
I’m sticking out my tongue.
I’m blowing you this raspberry,
And that’s your ballad sung.

(Now, read that again, but imagine a big talking arse, and it’s farting the whole thing.)